With just a few minutes of care, you can reduce the potential of electrical system issues such as a dead battery and keep your vehicle running smoothly.
Clean and protect your battery with Permatex products.
Quick Tips
- Avoid charging a frozen battery - A discharged battery can freeze easily. Never attempt to charge it until you warm it.
- Thaw naturally indoors – Let a frozen battery warm up in a heated area before charging. Do not apply direct heat.
- Don’t rely on jump-starting – Jump-starting may get your engine running but won’t fully recharge your battery. Driving or idling may take hours or longer.
- Use a slow charger – For best battery health, recharge slowly at 2–4 amps. A full charge from dead can take several hours to two days.
How to
Why Winter Is Hard on Car Batteries
- Cold slows battery chemistry - reducing power output.
- Higher electrical demand from heaters, defrosters, and lights drains charge faster.
- Moisture and corrosion build up more easily in cold, damp weather
- Thicker engine oil makes it harder for the starter to turn over the engine.
Step 1: Test Your Battery, Starting, and Charging System
Before winter sets in, test your 12V battery and charging system to catch potential problems early. You can perform this yourself or visit a trusted repair shop.
Modern conductance testers are safe for batteries under 75% charge and range from $50–$400. Testing ensures your alternator, starter, and battery are ready to handle winter demands.
Step 2: Clean & Protect Your Battery
A clean, corrosion-free connection is essential for strong starts and consistent performance. The Permatex Battery Care System — featuring Battery Cleaner #80369 and Battery Protector and Sealer #80370 — helps your battery perform at its best, even in freezing temperatures.
Clean
Ensure efficient power flow by removing dirt, corrosion, and grime.
Spray Permatex Battery Cleaner#80369 generously over the battery and terminals.
Let it sit for 3 minutes. Rinse gently with water.
Repeat as needed, using a small wire brush for heavy buildup.
Protect
Shield your terminals from future corrosion and extend battery life.
Shake Permatex Battery Protector and Sealer #80370 for 1 minute.
Apply two thin coats to terminals and cable ends for a lasting, protective barrier.
Step 3: Maintain a Healthy Charge
Drive regularly to keep your battery charged.
Avoid short trips that don’t allow the alternator to replenish power.
Use a slow charger (2–4 amps) if your vehicle sits for long periods.
Keep Your Battery Strong All Year Long
As temperatures drop, your vehicle’s electrical system faces one of its toughest challenges. Cold weather puts extra strain on your alternator and 12V battery as you rely more on the heating system, headlights, wipers, and other accessories. Thickened engine oil and lower battery capacity make it even harder to start your car.
All electrical power begins with the 12V battery — and with a little seasonal prep, you can keep it healthy and reliable all winter long. Always consult your vehicle’s Owner’s Manual for specific procedures related to battery sensors, radio locks, and other electrical systems.
With regular testing, cleaning, and protection, you can prevent most winter battery failures before they happen. Trust Permatex to help keep your vehicle’s electrical system reliable when temperatures drop.
